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I wonder if it could be a problem between the mobo and the harddisk. Not the HD itself, but the way data is transferred to and from the CPU and memory. Perhaps large transfers somehow error out and keep causing the random BSODs.
Was the BIOS ever properly reset to its default values? If not, I would urge you to try that before starting to manipulate any settings. (I would think that resetting to defaults also turns on ACPI 2.0 which you found to have been disabled for some reason.)
It might be remotely possible that the videocard has a hardware fault as well, maybe it's worth trying another card in this PC for a while.

Forget what WhoCrashed says about this being a driver problem; it is most certainly not. I'd think that the problem has to be with the RAM, CPU, or motherboard. Remove one of the sticks of RAM and run on the remaining 4GB. Do whatever is in your power to do to trigger a BSOD, and if you get one, swap out that 4GB stick for the other one and repeat. You might also try running Memtest86 overnight on each of the 4GB sticks.

BSOD after taking in PC to repair shop

Need help with hard drive repair, system is taking a long time to bootIn addition when it does boot I can't launch any programs which aren't part of the system (I can change desktop settings, search my hard drive, etc. but can't run things like Skype or chrome.) My laptop has been having a weird issue for a while where when it came out of sleep it would have this...

General Discussion

BSOD, Startup Repair, System Repair and other errors on nearlly new PCI took delivery of a new (and expensive!) PC in January but last week it started giving me constant and varied errors.
The isssues range from Blue screen, black screen, failing to load windows, startup repair needed often, system restore needed often, and when it does load windows there are...

BSOD Help and Support

Repair Taking 32 hours....Hi All,
I have a Windows 7 laptop which I have had for 12 months. More recently it started to run very slowly and I had to constantly refresh IE (version 9) I had tried to run avast antivirus scan on it to see if there was anything untoward but after 2.5 days the scan (simple scan, not full...

How do I shop for my OS?I am building a computer and need to save a few bucks for a power supply. I have found that the OEM version of Windows 7 is much cheaper than the full retail version.
I don't know a lot on these things but I have read that the OEM can only be installed once and thats it? Your OS becomes corrupted...